Touareg V8-4.2L (AXQ) (2006)
Fuel Pressure Check Valve: Testing and Inspection
Right Fuel Pump Check Valve, Checking
Right Fuel Pump Check Valve, Checking
Test conditions
‹› Fuel pump relays - 1 - and - 2 - for left and right fuel delivery units must be removed from their sockets.
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Remove locking ring from left sensor flange (fuel filter) using fuel tank sensor key (T10202).
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Carefully pry up sensor flange and raise it slightly.
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Disconnect connector next to fuel filter.
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Pull fuel supply hose - 2 - from right fuel delivery unit off fuel filter - 1 -.